Michael and Diana are married and have five children: Michael II$,$ Zena, Amara, Bryan, and Skyla. They live at $120$ Main Street, Flushing NY $11425.$ Michael is a lawyer working for a Native American law firm, Native American Justice, Inc. Diana works for Creation, a genetic research lab. In each situation, identify the filing status that is available to the taxpayers.

a$)$ Assume that Michael and Diana are living together and all their children are qualified dependents. What filing status can be used for $2023?$

b$)$ Assume that Michael left his home on March $15,2023$ and have not returned. Diana and the children continue to live at the family home. What filing status are available for both Michael and Diana?

c$)$ Assume that Michael died December $15,2023.$ What filing status are available to Diana, if she continues to live in the family home with her children for $2023,2024,$ and $2025?$